Typewriting machine



March 30 1926. 1,578,294

` B. C. STICKNEY TYPEWRITING MACHINE Original Filed Sept. 14. 1923 2 Sheets-Sheet 1 March 30,1926. 1,578,294

v B. C. ESTICKNEY TYPEWRITING MACHINE Original Filed Sept: 14, 1923 2 Sheets-Sheet 2 Patented Mar. 30, 192,6.

'l 1,578,294' rent ortica,

BURnnAM C. STICKNEY, or mi*1.1nnroni),,.nnwrnnsnrrg nssrenonro nnin'nnwooio TYPEWRITER ooMPANY, 0F NEW Yeni, N. "5L-,fa oonroRnTIQn-or nnnawiinn..

'rYPnWni'riNG MACINE.

`Application filed September 14, 1923, Serial jN. y682,t`59'. Renewed 'Augustv 15',

Y all 'wh-0m t 'may concern.'

Be it lniownthat I, BURNHAM C. STICK- Nnrf, `a citizen ofthe United States, residing in Rutherford, in the county of Bergen'and State of New Jersey, have,inventedvcertain new Vand useful Improvements fin Typewriting,l Machines7 of 'which the'following .is a specification. Y 'Y This inventionv relates to line-spacing mechanism for typeivriting `'machines filed April 2S, 1923, disclosure vwas made ot novel unit-adjusting means v:tor controlling `lie 'line-spacing mechanisin'to eii'ect minute y'variations in the extent of theline-spacingv basis or unit, especially in -combinationwitli novel multiple-ac'ljListing means settable to cause the platen to be advanced at the linespacing operation either l, 11/2, 2, 2li/2 or `3 times (for example) the unit distance deter' mined by the tine regulation of the unitead justing means. The multiple and unit `ad justin-g' means were arranged to Ibe set entirely independently of each-other, that' is,`

a given setting of the Inu]tiple-'adjusting` meansr would Y multiply by the indicated amount any "selected unit' determined bythe uiiitadjusting' means to 'cause the platen to 4be advanced at the line-spacing loperation a. -distance'equafl to the selected multiple of the selected unit. y' Y Y The line-space' lever was connected lto drive the platen throughfaI train of mechanisin` consisting of 'a rack, a -pin-ion,` a universal clutch, a Vnormand ai Worm-Wheel. The clutch enabled the line-space lever to pick up the Worm in any position5 While the worin, interinesliing with the Worin-Wheel, retained the platen in any position t-o which it ivzis advanced. linger-piece for turning the Worin in one direction to advance `tlrieplaten minutedistances independently of 'the linejspac'ing mechanism for the purpose 'of effecting line adjustments. The Worin Was held'yieldl ingly in engagement4 with the Worin-'Wheel by a spring, so tliat'itcould b'e'vforcedaside by the worinwvheel to pfeiniit a rapidfrevo- 'lution or'sweepingmovement to be imparted Ato the platen. p p It'isthe object ofv the present invention to provide?mechanism morel compact than said inechanisnn and which has otli'errimportarnt advantages that Will be'jpointedout herein.

' 'll-lie mechanism of the' presentinvention inl Inl my pending application, Serial No.635,23?,

Provision Wasy inade: of a clu'des independently#settable.unit and multiple af'ljust-ing means `for regulating Vthe p length otstrole of the'line-spaceleveryand a .train `offinechanism connecting' tlie'lineyspace lever andthe platen for causingthe platen tov "be lineffed in proportion to the length kof stroke of the'liiie-Spalce lever.

*In accordance With one important feature 'off the invention7 the rack forvdrivlng the platen- .is-l'ocat'ed directly u pon the line-spac ing lever and actsias a partthereof,v conducing Eto simplicity and compactness.

ln 'the machine of the application referred to*above,provision lvvasinade yfior relative vertical shi-fti'ng'ofthe lineispace lever and platenffraine in oase-shitti-iig.` yThe placing of `the rack `on the line-space vleve-r itself,-` in lthe presentinstance, fis accom-f panied 'by the provision i'of other Y-n'ieans in Vfthe train foi' permitting this relative Shift-k ing between the parts mounted onl the carriage and the parts -`in`oi'iiitt' jd 'on the platenv shifting Without -disengaging them. 'The Vpin'ioiiis preferablyV coaxial with a V Wornn'i andV drives the Worin through' a Vuni-. versal clutch. i' The; Worm, in tui'njmeslie's Ot a crownivheel atthis point in the train enables ythe Worin Ato arranged beside the Wheel, ythus permitting thev parts to be a1'- ranged coinpactly@ It' 'also contributes mal teiially to "other v'features of the invention. @ne of lthese features consists in arranging the croiinwflieel's'o that it, and not the worin', may beV moved Vto disconnect the 'platen from the-Worm to permitv a sweeping movement of "thepla'tenL For this purpose,V

'tlielcroivn,iv'lieelis slidingly mounted upon the Vplaten-axle 'and is lui-ged toWrLrd the' Worin by a spring. p iQ-ne, of 'the 'platen-turnf 'ing knobs may 'be-lsl-idable along the platen- 'axle 'to i tlirustY the "orowi'i 'Wheelf'out fof `fenga'genient with fthe Worin, anda detent `locks tliecrorvii Wlieelout r of engagement with Worm when desi-red.l :Provision isniade, oit driving connections -between the platenfknob with a ycrown vvheel mounted on the platen-l y laxle ier. driving thefplaten. 4The,provision and ftheplaten, and-between the 'worin Wheel Aand 'tli'e'fplateng 'which are effective at 'all nio ' Vworn'i wheel tol turn in unison.

A further featurejof thellnventionconf tiineslto cause the laten laten-kno and n K aY sists in .theprovision of means for finely 'adjusting'the Lplatenvin either direction independently of thev Vliner-space lever. To perl. mit the worinto be turned backward,y the `worin andpinion Vare disconnected." "As has been stat-ed, the worin is connectedto vbe driven by a pinion through a universal clutch.v Cain means is provided for withdrawing the movable member of the clutch 'from engagementwith the fixed member of the clutch, near the end of the return stroke r ,ofthev linespace lever, as the parts approach their normal positions, and for holding the Vclutch-ineinbers disengaged while the parts are in' their normal positions. A ingenpi'ecc isvconnected toV therworin for turning it forward orbackwardto rotate the platen independentlyY of the pinion.

ther features of the invention includel simplified and more lcompactly arranged lunit and multiple@adjusting means, and the provision of'a cover-plate for the adpisting means having plainly visible indexes.

The line-space regulator vor multiple-adjusting means vcomprises a stop-device ad justable` tojrbring any one ofseveral stops y or steps intorthe ,path of an oscillating.- arin which is connected to an arm 'of the line-spacelever by` using a' connecting link provided vwith, a microscopcally adjustable block. This arm Vof the line-space lever to which the oscillating arm is connected .may entendsubstantially at right angles tothe actuating .arm` thereof, whereby space "is A .mountingvcf thel micrometer screw'Yv in the .swivelefh block results in a very much simpliiied construction of rthe 'unit-adjust ingmeans, and permits the aXis of the screw to shift lor swing tol accommodate the, curve of Athe .path of' the adjustable block.V l

VvThe cover-plate lsupports the, ,adjusting means andforms with the line-space lever a y 'uniti which may be readily substituted for t the line-space lleverof the standard construction. Y The .cover-plate has slots which accommodate pointers mounted respectively Y' onthe 'multipleadjusting stop and on the link Vwhich connects the oscillating.arm to vthe line-space lever. Index-marks.adjacent the.,rst-nientionedYslot indicate the multi- 'fplier for which the inultiplejadjusting devvice is set, andre'eesses in ythe"'plateco-op- `e rate with adetent on the stop to retain the i .Stor ,in ,its @dilated Posities,Ileana-alerta l vice is set.

advantageswill hereinvmachine. having the ated' y positions withl the The adjacent thel second-mentioned slot indicate the unit for which the umt-'adJustmg de Other features and after appear.

l 'j In the accompanying drawings,A

Figure l is a sectional side elevation of vthecarriage of anUnderwood typewriting A present improvements applied thereto. f f

Figure 2 isa plan view of the -left end of the carriage, partlyr broken away.

Figure 3 yis a front sectional elevation throughthe .uint-adjusting means, showing,1 the construction thereof.v f r 'Y `Figure @is a detail plan View, Vpartly in l,

sectionY and partly broken away, showing the mounting of the crown wheel and. the platen-turning lmob "for disconnecting'it 'iromvthe worm.

Figui-e5 is a fronty endgof the carriage.

V'Figure 6 isa plan view showing the lineyspacing' ijiiechanisn'i asit would appear` iu thel assembled machine.,

Figure 7 isavertiCal sectional View, takenon the Vline 7-7 ofA Figure 2, looking in the direct-ion of tliearrows. l

Figure 811s a diagrammatic View indicating the positions of the line-spaceflever and p connected mechanism in normal and actuunit-adjusting means set for the largestjpossible unit, and the coarse line-space regulator or multipleadjustingV means setrfor the 4largest possiblej multiple or; the Widestline-spacing.-

`Figure 9 is a plan view', partly broken away,`of the line-space lever andv adjust Vingmechanism in actuated position, Vthe lYunit-adjusting means 'being r setfor the,

largest unit, V,and theV multipleeadjusting means being set forv the largest multiple.

Figure 1011s a fragmenta'ry plan view ot ,the line-space lever and adjusting'- mech-V anism in actuatedposition, the un`it-adjust ing means being setfor the largest possible unit,'and ther inultiple-adjusting means be*v ingfset for thesmallest multiple. u I

The usual Underwood cylindrical platen 10 is mounted upon an axle ll, Journaled in elevation of the leftv a' platen-frame 12, carried-by a traveling carriage 13, andsliiftable-vertically with respeetthereto forupper-ease writing.r The platen 'lO .is linesp'aced.toV feed `the workiby a horizontally-reciprocable yline-space 'lever 1,4,"fulcruniedfat 15 yon the carriage 13 and bearingrat itsrear end an arcuate raclrl in mesh wit/ha pinion 17- mounted onethe platen-'frameli forro-tation about a 'Yverticalaxis. Connectionsbetween the pinion' 17 and the'platen vlO cause the platen'to bek ladvancedwhen the .liner-space" lever 141 is moved toward the right, the advancel of vthe platen beingin vproportion :to the extent of @L1- Gla .lewe-leest at the lieefspace lever.' The pfaten remains idle during the ret'urn'inove` ment ot the line-space lever 14. totvard'the left The connections for this purpose will be fully described lhereinatter; i

The extent to which the line-space lever 14 may be moved at a line-spacing operation is controlled by the joint operation ot un'it-adjust-inf means and multiple-adjusting means, tne unit-adjusting means being effective .to determine the unit or basis ot line-spacino', and the multiple-adjlisting means being settable to cause the extent ot' line-feeding to be equal to the product of the,

selected unit by any one of a series of1nultipliers, 1n the present ,case 1, 11/2, 2, S21/2 or 8. A1 cover-plate 18 is secured upon the fearria'ge 13 by screws 19 and a nut 20 and supports the line-space adjusting` mechanism i with the exception of the parts carried by 'the line-spaceV lever. p kbe substituted' in the standard machine,

This mechanism may thereforehy changingv the linewspace lever and adding the cover-plate with its connected parts 'The niultipe-adjustingmeans comprises an oscillating` arm 21 pivoted on the cover-plate 18 at 22 to reciprocate to- Y' Ward and from the platen 10, and ,having an units, respectively.

upturned end 23 tor limiting movement of the oscillating arm by engagement With one of .the steps a, b, c, (Z, e of an adjustable a, b, c, al and e are designed to .arrest thev line-spaoe lever when the platen has been advanced 1 11/2, 2, 21/2 and 3 llne-space has a pointer 2,8 which passes through a slot 29 in the cover-plate 18 and (3o-operates with index-marks on the coverplate to indicate the settingVV of the stop. A spring-plate 3,0 on thepointer 28 carries a handle 31 for moving the stop ,24,l and also carries a prof j ection 32 to lit into openings 33 in the cover-plate to detain the stop yieldingly in its adjusted positions. l

The link 26 is connected to the line-space lever 14 by ymeans of a block 34 which is pivotally and slidingly received in a slot Vin the arm 2T of the line-'space lever, the block'beingretained in the slot by aicollar 36 at its-upper end.r The block 34 is'adjustablea'lonf;` the slot 35 to 'ary its dist-ance :trom the fulcrum 15 of .theline-space lever 14 by an adjusting .screw 3.7 which is thread# ed into the block 34 and which h3-S a knufed head 3S whereby it may Vbe turned. 'f yl adjusting screw-37 is mounted in av 'swiv-1 The adjusting stop 24 eled bearing block 39 depending from la pivot-screwed) on the line-space lever 14. The adjustingy scr-en7 371s freely rotatable in the swiveled bea-ringV block 39,'bi1t is held `70 against :endfwvise ymovement relatively there` to by thehead 38e-nda collar 4101i the ad'- gusti-ng screw iv'h1ch"be,ar

yseen that adjustmentfot the :block 34 toward the u'lcrum 15 or" the line-space lever 14 reduces l.the effective ylength et arm 2'?, Y di.-

ininishes the motion transmitted by the line-l space lever tothe loscillating arm21, andk soY increasesl the movement of 'the ,line-'space lever required to mov'ethe end 23 yinto-'fengagement with a given step of the stop 22,

throngha slot 43 in the cover-platelS and (fo-operates VvWith index-marks on the cover-k p'late to show the line-space unitfor the mechanism' is adjusted. f ,p The slot 35 m the arm 27 is curved upon which an aro having isv its .center'the point ot connection ot' the oscillating'- ,arm-21 and begun. Turning ofthe screiv' to change the line-space -unit does not, therefore, alter thepositionat which the advance ofthe platen is begun. `The vprovision of the svviveled bearing block 391er supporting the adagainstl opposite sides of the bearingv boel; 39. It Ywill be' and theretore ii'icreasesthe line-space units? An indicator 42 on the link 26 is visible' justing sere7 37 enables! the axis ot' the ad'- e justingfvscreiv to shift as the block-84 is adjusted along thearcuateslot 35, and thus simplifies the nnit-adgustmg means.

'Y fThe pinion 17 isfmountefdftor rotation.

about-a' vertical shaft44 journaled in brackets 45 and 4G onfthe platen-frame 12, and f its ver-ticallyfextending Vteeth Aare Aof sutiled" with the'v platen-traine'',V andgrelatively to 'cient 'length'to permit the pinion'to b'eshift Y vthe rack 16 tor upperoase i'vriting'wvithout f disengaging the pinion 'and the rack. *Alp'ori tion of the'platen-traniefwhich usually rests von therarriapefto support theplaten-iframe in its normal, lo\veroase position is cut/away to v.avoid interference with the reciprocation oi thefrack 16. An angle-} 3late 47 issecnre'd 'to tlieplatendframe in non-interfering rela-v` tion to the rack 1t f`and engages the carriage to serve ,as a stop and support 'or'the platenframe in its lower-case position.d

The'pinion 1T diia universalclutch fcomprisingy a' movable ii'o v esthe platen .LGth'roug-li l clutch-member 1S-having teeth 49 anda relatively Vstatitmary chit-ch-n'ien'iber 50 having` tine .teeth to be cirinV The relatively stationary' '1S fast tothe shaft" meshes ivith a icrow-nA Wheel 53 mounted 0.1i the plateneal le 11.. A; brake 54 retardsytlie move' 'rent o1l ,the Worm to ,prevent 'overl 'teed'ingfof' the platen diie tothemomentum 'ed by 'the teeth' 49. clutch-member 1 A ivorin 52y is also'V fast4 to thel shaft 44- ',atf'its 'lo-werleiid and 90i I l the link26l in the positions occupie'dby theQ .Y parts When the .advance lof the 'platenl is y cir-axle Il and 'carries` pins 66 which may acquired by the worin and the inechan-isni',V

connected to the worm.

It is desirable at times to adjust thegworksheet to exact typing positions different from ,y tliepositions determined by the line-space at its upper end for. turning it, and hence the worm, ineither direction. Themovable l member 48 of the universal clutch vis slidable' along the shaft 44 into and out of engagement with therelativelylixed clutch- *inember 50, being urged toward thel latter l''Yclutch-me'in'ber, 48, while permitting the clntch-n'iember4S toV slide toward and `fromr the clutch-meinberf kand relatively to thek 3eA .Y tol be turnedjby the lniurled ringer-piece by a spring 56, which is received in a cupped opening .57v of theY member 48 and bears at Vits 'upper end against the lower i'aee of ythe pinionl?. Horizontally-eXtending pins 58,

threaded into the lower end of the pinion 17 areslidable in a groove 59 in the Vtop ot the clutch-member 4S to maintain a-driving connection" between the pinion and the pinion. .In order' to permit the worm 52 in-a directionftodrive the platen l0 back- V'ward,`provision is made of means to hold the L member 48 to a disengaged position. Aline'-v kiinproven'ients' Vmay be used witlioutcothers.

clutch-member 48 normally in a disengaged I position, so that the pinion 17 andrack 16 will not be` connectedl to the worin. The olutch-meinberi48 has a projection 60 whichr is provided ywith a lower `beveled cam-face 6l to engage a (5o-operating 'cam v62 on the bracketY 45; On the reverse movement of the line-spacelever 14, Yand just prior to ythe completion ot suchimoveinent, the cam-'face l6L engages the cam 62 to lift the; clutchspaoe lever return spring'6A-,connected to' the `line-space lever 1,4 vand the cover-plate v1S, is strong enough to return the line-space lever the full distance and litt rthe clutchineniber 4Sy against the resistance ot the ,spring 56.

It is desirable when inserting and remov- A ing work, and at other times as well, to impart a sweeping movement to the platen l0. In r'order to permitcthis tobe done, the crown wheel 53 is'slidably mounted upon the platcn-axle'f'll., being normally urged into engagement with the yworin '52 Vby a spring 64 interposedy between the crown'wheel and the platen-trame l2. `The left-hand platen-knob Ybe 'actuated by longitudinal Vmovement 1 of the knob'to'inove the crown wheel 53 out of engagementwith Ithe worm 52. The knob 55 Qs a Spring-pin- 67 which s designed claim to snapv into either of two notches 68 and 69 ,in-the platen-tuilel 11, the notch 69 gde'- 'taining the knob in position to hold'the crown wheel 5,3 andworin 52 disengaged (see Figure 4).v The pins66 for lthrusting the crown wheel 53 out of engagement with thelworni 5,2 passtlirough openings 0 in a disk` 71A fast onthe platen-axle Yl1 and vmaintain a driving connection between the knob V65 vandthe platen, and the diskv 7l haspins 72 slidingly received in` lopenings 73 on the 'crown wneel 53l to maintain a driving connection between the crown wheel andy the platen at all times. Y y

In Figure 8 the normal. and actuated positions of the line-space lever and the adjusting means are shown diagrammatically-,vthe

multiple-adjusting .means Vbeing set forV triple spacing, and the unit-adjusting means being set for of an inch. YWith the parts thusset, the platen will'be advanced 27/32 ot an inch at each line-space operation. The 'parts are indicated inv normal positions by the "full lines 14, 27, 26,21, and in actuated positions by the dot-and-dash lines 14, 27, 26. il. The line-space lever moves 'from tlie'position of full line .14 to vthepositionfv oi' dotted line 14 before the clutch-members 48 Vand 50 become engaged to advance the platen.' Figure 9 shows `the parts in positions corresponding to the dot-and-dash lines oi' Figure 8. Y f

In Figure .10 the parts are shown in actuated position with the Vnniltiple-adjusting means-set for single spacing, and the unit-adjusting means set for 95 of any inch. Coin'parisonof Figures 9 and l() shows that the line-space lever 14 is permittedrto advance three times as tar in- Figure 9 as in Figure 10, which results in the pinions4 being `turned three vtimes as ar,'and hence results in'three 'times as great line-space advance. Variations may be resortedztofwithinthe scope of the invention, andl` portions ot the `Having thus describe-d my invention, I

i lr YIn a typewriting machine, in combination, a revoluble `platen I and line-spacing mechanism therefor, comprising a line-space` lever, a horizontal rack on the line-space lever, and a pinion in mesh with the rack, the

pinion being mounted for rotation about av vertical'` axis and having teeth of sufficient length .to permit case shiftingot the pinion relatively to the rack without disengaging the rack and pinion.

2. In a typewriting machine, ai traveling carriage, a platen-traine shiftable therein between upper and lower case-writing positions, ajrevoluble platen -in thevplaten-raine, a line-space lever on the carriage, Vanarcuate rack von the lji'ne-spaceflever and reciprocable horizontally thereby,-the rack being curved etes? sie fuiste. ef the lite-Space lever es a center, and a pinion in mesh withy the rack, the pinion. being` mountetl on thefpljaten'- ltrame for rotation about 4a vertical axis and having,` teeth `oi. suliicient length te permit the pieion toshi'ft with the platen-trame'and relativel'/v to the rack Withont-lieing disengaged ifi-oni the rack.

SQIn a typewriting machine, apla-tenframe, a platen-axley iournaletl therein, al

platen on sai-fl axle, and line-space mechanism for the platen comprising a crown Wheel on the platen axle, a Worin at the side ct the crown Wheel and in mesh therewith', a reciprocahle line-space leveigvaiitl means 'for VettectiingT a one-way driving connection 1cetween the line-space. lever land the Worm.

1l. In a typewriting machine, a. plateni'ame, a platen-axle journalecl theieiin'ag platen on said axle, line-spacing mechanism for the platen `conngrising a crown Wheel on the platen-axle, a. Worin atv the side of the crown Wheel and in mesh therewith for rotating the crown Wheel to line Vspace the platen and also for locking the Crown Wheel against accidental rotation, ,means for driving the Worm, and means for moving the crown Wheel out of engagement With the Worin to permit a sweeping'y rotation ot' the platen.

5. In a typewriting machine, a platen- ;trame, a platen-axle journaled therein, a platen on ysaid axle, line-spacingmechanism ttor the platen ,comprising a croWnvWlieel on the platen-arie', a Worin at Athe-'side ofthe crownV Wheel and in mesh therewith for rotating the crown Wheel to ,line-space ,the

`platen and also torlocling. the Acrown Wheel against accidental rotation, meansiforV tl-iivine' `the Worin, a platen-knob on the platenaxle for rotating the platen independently of the Worm to impart a sweeping inov'en'ieiit to the platen, and means operable by the inverni, and means for rotating the platen independently ofthe Worin;

ln typewriting machine a platen, line-spacing; mechanism acliustahle to atlvance the platen tfariahlefdistances and` ei"- iective to lock the platen against inflepei'itlent rotation, and `means for disconnecting the line-spacing mechanism and the platen and for? then imparting' a sweeping movement to the 'platenHintlependently ot the line-syncing' mechanism. 8. In a typewriting machine. afplaten, line-spacing mechanism adjustable to aclvaiice the platen variable Clistancescompris- .ing `eliecti f pendent rotation, and' means tor moving` the` We iii-Wheel ont off engagement with the position, antl Vhold the' crown Wheel ing a Worin andl Worm-Wheel, the Worin betoloek the platen vaggiai'nst inde! L"crm antlL Cleta'ining the worm-Wheel in .such die tat the platenindependently of the Worin'.

79. In' i a typewriting machine, a platenliain'e, a i platen-axle` joiiriialed therein, Va platen con' .the axle, line-spacing imechai'ii'sm 'adjustable to'ratlrance tlie platen Variable 'clistancca comprising afworin and a crown wheel on the platen-axle'iny mesh with the Worin, the Worm beingeliective by engagement with the ciovn Wheel to loci; the vplaten against independent rotation, ineans` for moving the crown Wheel along` the platen- 70 engaged' positionand for thereafter ro'- axle to j clisengage it from'V the Wormgand for f tletaiiing the crowns-'Wheel in disengagetl means for imparting a' sWeeping movement to the'. platen independently I ofthe line-'spacing mechanism While the kCrown Wheel is ,disengaged from the Worin. v l0.` Iii a AtypeWriting," machine, a platenf traine, 'al platen-axle joiiriial'e'cl therein, a platen on the axle,` lii`ie-s'pacing'mechanism for the ulaten.I comnrisin'e*v a ncrown Wheel iiiiiiitetl oif thev axle `for slidingv movement l i ".li f L.' ,L relatively thereto, a Worm ,beside the crown wheel, a' spring noi-inally pressing the' crown` Si'lieel'into mesh with the'worm, the vWorm being' ellleeti've; through the crown Wheel to rotate the platen andato, loclttlie platen vagainst independent rotatioi'i, means l for iiioii-iig the' jc'rowi'i Wlieel againstV the v'resistance of' the spring to icliseiigagethe 'crown Lnhfe'efl from" the Worm, means 'to maintain a 'driving ,engagement between lthe crown tcr'rotatingtlie platen!independently ofthe Y ire-rin when the crown Wheel is `disengaged lil. ln' typeniitiiig' machine, a plateiig .fi-aine', a platen-axle Journaletl' thereingffa,

platen on the' axle, line-spacing mechanism tofiitli'e platen,comprising a" crownwheel slitlalile Cn'ltlieplaten-axle but having driving" connectiontheren'itlil and. a Worm beside the crown wheel and iiifinesh with it. forroltilting the platen and for .locking the platen against independent rotation, a plateii'lniob elitlable on the platen-axle but having' driving* cojinectioii tl. iefivitlnineans `carried by tlieplaten-lnob'tor moving thecrovrn WheelV away 'from the Worin the platen-knol) leeingg` 'the plaA ,n/.li'ic-l) for (letaininj'it in position to disengaged from the Worin. A' v l2. In av typewriting machine,- aplatenframe, a 'p'latei'i-axlefjournaletl therein, a

platen on the axle, line-spacing mechanism platen independent@ yoit the wei'ii'i, `aiiil a. cleteiit carried by the ico for the platen, oinprisinga line-space lei/er, c

a. horizontal reciprocable' rack carried thereby, a pinion mounted tor rotation about a iiXed vertical axis on the platen-frame, la vpinion having teeth ot sufficient length to permit relative vertical' movements of the pinion and-rackin case-shitting,fa worm driven by the pinion and co-axial therewith, anda crownwheel o-n the platen-axle driven by the worm, and means for moving 'the crown wheel along the platen-axle to disengage' it from the worm to permit a sweeping movement of the platenV independently of the line-spacing mechanism'.

Y 13; In a `ty-pewi'iting machine, a plateniirame a )laten-axle ournaled therein a 1 7 platen on the axle, line-spacing mechanism Ytor the Vplaten, con'iprising a worm mounted von the platen-i' `ame rotatable about a fired` vertical axis, acrowuwheel on the` platen-l -aXle, and mea-ns for pressing the crown` ,wheel yieldingly into engagement'with thev worm whereby the worm is connected to ifo-- tate the platen and to lock ityieldinglyV against independent rotation, and means-to move the crown wheel ou-t otengagement with the wormV and to yieldingly detain it in disengaged position.

w14. In a typewriting machine, a platenframe, a platen-axle j ournaled therein a platen on the axle, line-sp acing mechanism tor the platen, comprising a worm rotatable about a tixedvertical aXisfon the platen-frame, a crownV wheel `slidableV on the platen-axle,

means yieldingly Vholding the crown wheelv in engagement `with lthe vworin, a platenknob movable along the platen-axle to thrust the crown wheel out of engagen'ient with the worm' and rotatable to then turn the platen torthe platen, comprising a worm'rotatable l about a lined vertical Vaxis on the plat-enframe, a crown wheel slidable on the platenaXle, a spring for pressing the crown wheel f into engagement with the worin, and a. plate fast onthe platen-axle for limiting movement of the crown wheel toward the worin, and a platen-knob for thrusting the crown wheel out ot engagement with the vworin to permit the platen to be rotated independently thereby, said yplate servingalso to connect both the crown 'wheel' andthe platenknob to the'platen-axle at all times.

lgln'a typewritingl machine, a revoluble' platen, a platen-axle, and line-spacing mechanism tor the platen, comprising a lines ace lever means torad'ustino` the stroke a l a of the leverto vary'the extent ot the linespace advance, means operatively connecting the lever to rotate the platen, comprising ,a universal clutch consisting of relatively fixed and movable inembers,a wormand a worin wheel on the platen-axle in mesh with Y the worm, means for rotating the worm in either direction independently of the linespace lever vto effect ine'adjustinents of the platen in either direction, and means noi'- mallypholding the clutch members disengaged to disconnect thepworm and line-space lever so as to permit the worin to be rotated in a.' directionto rotate the platen bac'l-iwartl.

17. In a type 'riting machine, a revoluble platen, a platen-axle', aline-space lever, connections between the-lever and the platen compiiisinga pinion vrotatable about a fixed 'vertical axis, a clutch member `driven by lthe pinion but Vslidablerelatively thereto, a

second clutchk membcrarranged to be driven by the first, auworml tast to the second clutch member,a worm-wheel on the platen-axle, a cam for holding the clutchinembers disengaged in the `normal posi-tions of the parts, and means for turningv the worm independ-- ent-.ly of the line-space lever to adjust the platen forward or backward while the clutch "members areheld disengaged by Jthe cam', A

the'cam being arranged to permit-ther clutch 1 ward strokeiot the line-space lever to advance the platen.

18.111 a typewriting machine, a platenfranie, a platen-axle journaledjtherein, a

.platen on the axle, a line-space le.ver,vcon

nections between the line-space lever and the platen, comprising a relatively movable clutch member having a cam thereon, a reia- 'ast thereto and a worm-.wheel on the platenaxle in mesh withthe worm, the relativelyv movable clutch member having a deiinite range. o1c movement determined by the linespace lever and being returned always to` the same initial position, a stationary cam on the platen-frame. arranged to lengage the 'cam on the relatively movable clutch Ymeinber near the end ot its return stroke and to move the relatively movable clutclrmember out of engagement with the relatively fixed clutch member, and means for rota-ting theV worm when the clutch members are `thus disengaged to adjust'the platen either forward Y or backward.

19. In aV typewriting machine, a platentrame, Va platen-axle journaledV therein, a platen on the axle, Va line-space lever having a horizontal reciprocable rack at its rear, a

pair of brackets on the platen-trame, a. vertimembers to become engaged early inthe orv tively liXed clutch member havinga worm cal shaft rotatably mounted inthe brackets, i

a pinion loose on the. shaft and in ymesh with the rack, a 4Clutch ,member loose on Athe shat and connected to .he `driven by the pinion, .second (3o-operating clutch :member fast @to the shaft, a Worm fast tothe shat, a orma iy wheel on the 4platenaxle inineehxwith the worin, Cooperating @am means on ftheiloese clutch vrmember and the `platen-dir.ame lto =dfisv engage the clutch members lnear the end oit .tre return stroke ofthe yline-space lever, and

a linger-piece 'for turning the Woran neigtlaefr.

rear, a vertical shatrotatably mounted on v the :platen-frame, va pinion-loose Ion :thesliatt at its upper end, Valrelatlvely movable chaton member loose on the shaft below zthe pinion an'dfoonnected Ito be -dri-ven'b'y the pinion, a relatively iXed clutchmember fast .to the shaft at :its lower end, a 'Worm fast to `the relatively -iiied clutch member, a )crown Wheel onthe platen-axle and in mesh with the worm, a spring urging thev relatively movable clutch] member Ito-#fard the aelaf tively Yfixed clutch member, imeans effective in thenorinal position of the paras orholding the relatively movable elutoh member away from the relatively fixed elutch .meinber against the force ot' said spring, ,anflfa iingerpieoe fast to the `vertical `sha-ift a-.t lts upper end for rotating the shaft to turn the worm in either direction independently of 'the lines-pace lever to feect fine adjustments of the Work. y Y

2l. In a typewriting -maohine, a platenr frame, a .platen-axle journaled therein, a

platen on the `platen-axle, a line-.space lever having ,a horizontal reoil roeahleraol at .its rear, a vertical :shalt :rotatably monntedffon the platen-frame, .a Ipinion loose on fthe shaft a lits upper vend,a relatively movable clutch member loose on the .shaft below the pinion* and connected to be driven by the pinion, "a

relatively fixed clutch member `fast tothe shaft at its lower end, aUWormA` fast to the relatively Vfined clutch member., la Y'Grown Wheel on the platen-axle and in mesh with the Worm, a spring urging'the relatively movable cluteh 'member towaizdtlie relatively fixed clutch -mei-nber,lmeans effective Yin the normal position of lthe parts for holding the relatively movable clutch ymember away from the relatively fixed elutoh member against the force of said spring, a lingerp'iece fast to the vertical shaft at its upper end for rotating' the shaft to .turn thejvorm in either direction independentlyo the .linespace levert@ etl'ect tine `adjnstnients of .the Work, and are'turn spring 'for the 'line-space `lever .of sufficient strength to effect a u'll advanced ;at the next areturn strolrefthereof :to ldisengage the clutch fmembersagainst the resistance of 'the spring tending to effect'their engagement. f

In a ytypewritingiv 1naehine,gaplaten, a train of lineespaeing mechanism therefor, .including niiicnometer means for adjusting the unir-t or line-spacing, andi-lso including means :for 4adjusting the number of units :the platen will be advanced-'at a'l-inefspaeing operation, and -nieans conneeted in said 4train iiorV iinely Yadafusting the pl aten in either Y direction Withont-altering .the distance theplaten Will be .ing op eration.

succeeding line-spacd 23. In a type-Writing machine, a :revoluble platen, ga line-space lever having an arin ranged to yreciprocate 'toward and .from the platen, an ioseifllating arm :connected rto :said y.

4arm oi' y,the line-space` lever to be' sW-ung t `v'a-rd and fromfthe platen `by.it,a stop on isaidoscillatin-g arm,'end :astop device set- {table' te interpose anyne otfar series oi: feter" in the .may of vthestopfon the ,oSCillating .arm yto lianit movement ofthe :linespace lever, and connections .between the llinespace lever and the platen vtor advancing 'the platen inproportion to Kthe,move-ment oft the i line-space lever. A

24. .In-a typewriting mach'ifne,a revoluble platen, ,a line-space liever .having an arm iar- -ranged 'to reciprocate toward and from the platen, an oscillating .arm extending across the line-space lever and connected to be swung toward and from the platen-by it,ra stop onthe oscillating arm, a stop-deyieefsettable to determine various limits 'of'.move

.ment v`tor the line-space lever Iby far resting die stop fon vthe*oscillating arm, :and connections between the line-spaoe leifler'a'rnd -tlre, ,platen for advancingthe platen in proportion-to 'the movement of the .line-.space lever.

In .a tyfpevvritin'g` maohinefa .12.ei'oli1ble lplateny-a line-space leverhaving,kr a slottedvarm ,arranged vto reciprocate.toward-'and- -from'the platen,aniosoillatiaig arm e'rztelirding across the linespaoe lever, a'r link connecting'the slotted arm :ofthe line-spacelever to the `oscillating arm `to swing .the Llatter toward and from the platen, an adjust ablestop device .to varrest the oscillating arm vin various positions tofdetermine Vdilf enent las limits of movement -thereoitand thereby to vary the raaigeiof movement of the line!l .space lever, a blockjconneoting, the link to the slottedlarm of the linespaoe lever, said t .block pivotal'ly and'slidingly received in the-slot of said arm, "and meansqfor adjusting the 'block 'along the slot .to-Ward and'f from the4 fulcrum .of ythe `line-space"lever f or' the osoillating'arm and therebyto change the hnelsp'a'ce basis or unit', Tand connections- Ybetween the line-space lever'andjthie platen 'enf `for advancing the platen in vproportion'to the-extent or movement of' the` line-space lever. l, Y a

kln-'a typewritingfinachine, a platen, a lii'ie-spacelever, {Connect-ions betWeenthe line-space lever and the platen for causingl lthe platenr to be advanced in proportion toV the etentot movement ot the line-space .lev ii", nait-adjusting means for determining Vthe basis or unit or' line-spacing, multipleadj nsting means` Jfor determining the number oi' units the -platenrivill be advanced at ythe line-spacing operation, said unit and'- multia ple-adjusting kmeans co-operating to determine the extent of movement of the linespace lever, and the unit-adjusting means con'iprising a'sliding block pivotallyY and l slidably ymounted on the line-space lever, a-

micrometer-screw' threaded Yinto the block ,tor adjustingit tow-ard and from theful-y cruin .of theline-space lever, and a siviveled bearing block on theline-space lever forthe inici'om'eter-screvv-,v` the arrangement being such that the axisv of the,micrometer-screw may shift as` the adjustment of the sliding connection'oi the "line-space lever arm and the linkV toward and iromthe ulcrum ot the' line-space lever Y to adj ust Athe vline-space unit, a pointer on the link, and a cover-plate f orthe ad'ustinjo' mechanism 'the coverlate Y' having a' slot through which the pointer is visible and index'marks for' indicating` the setting of the unit-adjusting means;

28.111 a typewriting machine, a platen, aline-space lever, connections between the 'line-space lever and the platen to'` advance the platen in proportion vto thee'xtent of i the movement of the line-space lever, unitadjusting meansadjustable to vary the linespace unit or basis, multiple-adj 1tisting means ytor controlling the number oit' the selectedl units'that'the platen will be Vadvanced at a line-space operation, a cover-'plate "for said 'adjusting means,ppointers on the adjusting means, and indeXeson the cover-plate for co-operating vwith theV respective ypointers lto indicate the settings of the adjusting means.

29. In a typewriting machine,.`a platen, a

Y line-space lever, connections between the linespace lever and the platen to advance the platen in proportion tothe extent of movement of the line-space lever, unit and' multiple adjustingkmeans cooperating tok determine theextent yof movement permitted to `the line-space lever,l and a cover-plate -or the 'adjusting means, saidl adjusting means being mounted entirely on the line-space lever and thecover-pla-teNvherebyfthe adjusting means maybe placed `in the machine Without special provision being made Y'to receive them.v a* Y n 30. n' a typewriting machine,ia platen, a

line-space lever,` connections between the linespace lever and the platen to advance the platen in proportion to the'extent ot i'n-ove- Y ment ot' the line-space lever, adjusting'means I Vfor determining Vthe vnumber of units that tlie'platen will be advanced at a line-spacing` operation, comprising anfoscillating Vstop and an adjustable stop having a series oil-steps 4selectively'settable into position to larrest'ftheA oscillating stop, acover-plate'for-the adjusting means having index markstopindicate` thev setting` thereof and recessesto detainy'the adjustable stop in adjusted positions, said adjustable stop having a` pointer extending through the cover-plate to ico-operate with index marks on thecover-plate to indicate rtlie'settings of the stop', a spring-plateon the pointer, a handle carri'edby vthe spring-plate for yadjusting the stop, and a detent ,on the spring-plate for co-operating-With the recesses in the cover-plate -todetain'the stop in its adjusted positions.

131,.'111 a typevvriting machine, a platen, a

line-space lever," connections between thev line-space lever and the platen for causing Vthe rplaten to be advanced'in proportion to Vthe extent of movement or' thek line-space 4leven'said. connections comprising a Worm to lockv the platen in any position "to Which it is advanced, means for 'breaking the connection-between the line-space lover and the Worm in the normal position lof the linespacelever and permittingthefvvorin to be picked'up by the line-space lever early in' the Aforvvard movement ythereohvmeans Jfor adjusting the length ot stroke ot the linespace lever, comprising an oscillating` arm,

a stop in the ypath of'said arm, a slotted arm on the line-space lever, a link connecting,l the oscillating arm and the slotted arm, and means for-adjusting the connection between the link and the slotted arm along said slot, the slot being arcuate and having` as its cen- `tei' the point ofconnection of the link and oscillating arm in the positions occupied by the parts at` the conclusion of the lost moy tion between the line-space lever and the Worm, whereby the position of the oscillating arm Vat the beginning of the advance of theV platen is causedv torbe the same' for allpositions of adjustment of Vthe adjusting means.' a

SQLVIn a typewriting machine, a platen,a

A'space lever extending lgenerally in the diree v tion of theflength'oi' the platen, alstep, vain -oscillating arm movable finto engagement with the stop, "a link eomiecting the yoscillating arm tothe slottedarm otthe linefspace lever, means for.` adju-sting the Vpeint .of connection .of the slotted arm and thelink toward and. frein the tulcrum` o t the line-space lever to adjust the line-space unit, -apointer .on the link, .and .a cover-.plate for the .adjustingdevice, thecoverplate having a slet through which the pointer is :visible `and index marks for indicating the .setting ot the unit adjusting means, thev arrangement being such .that the Yindex marksand lpointer may Vloe-aligned with .the eye of ,the operator sitting lat .the machine 33. The bombinat'ion` roi -a Yplaten, A a linespacetlever, -a rack driven-thereby, a pinion driven by the rack, a worm,V a 'driving clutch Vbetween -thecpinion and the worm, a 'worm-wheel .driving` V'the platen, a train of stop mechanism for said lever,y one end lot said. train connected .to sa-id leverto 'be `finely adjusted longitudinally thereof, `and the other end of said train includingase `of Eline-space-regfulating stops, `said clutch being normally released, and 4said vWorm -vin :mesh with the ,worm-wheel, .retaining ythe platen where .-adjustedby the .line-spacing mechanism, andfmeans .-for--eiieeting separation .oit the lworin and worm-wheel.

34:. In .a typewriting machine, `the .combination .with a revoluble platen, Vof a linespacing lever, a rack thereon, apinion meshing with said rack, a worin and worin-wheel between said pinion and the platen, a stop mechanism vfor said leverincluding a inely variable member for e''ecting minute variations in the extent of line-spacing motion of the platen, and a multiple stop device settable independently for multiplyingthe eX- tent of line-spacing movement, said platen being shittable vertically, and said rack being non-shifting but remaining in mesh with said pinion during the vertical shifting'of the platen.

35. The combination of a platen, a linespace lever, a rack driven thereby, a pinion driven by the rack, a worm, a driving clutch between the pinion and the worm, a worm- Wheel driving the platen, and a train of stop mechanism for said lever, one end of said train connected to said lever to be finely adjusted longitudinally thereof, and the other end of said train including a set of line-space-regulating stops, said worin-wheel in the form of a crown-wheel mounted coaxially with the platen.

36. The conibination of .jaj platen, `ra llinespace lever, aracl drivenithereby, :a pinion Pdriven bythe raclna worm, adriving'clutch 'between the `pinion and the worm, 'a' `worm- `wheel driving' the platen, and a `.trainv oijstop Amechanism lttorsaid tlever, 'one end otsaid train connected -to said "lever "to be "inely iadjustedllongitudinally thereoi', v:and *the `other end `ot Vsaid 4train including a setof line-spa'ceeregulatingstops, said worm-wheel in the ormof a crown-wheel mounted co-y axially withV the platen, "and said crownplaten Y 37. The combination ot `a platen, a linespace lever, -a rack 'driven thereby, a 'pinion ydriven by'the rack, aworm, a"driving'clutch 'between the ,pinion VYandthe worm, afworrn- 'wheel driving theplaten,` a"train `of Vstop l Vmechanism forffsaid llever, one-end 'of saidl train connected yto Lsaidllever -to `be finely afdy-j-usted lengitudina-lly thereof, land 'the other endfroi' saldftrainincluding `a vsetyoifilme- :space-regulating stops, saidf worm-wheel in' vthe-form ni?,- a '.croivn-.wheel .mo'unted .eo-1. axially lwith the platen, .said ...crownewheel Land worinl separable to release :the;.platen,and a .spring fholding the cnown-fwheel and worm "iirniesh. i v 38. The combination ot-a gplat'emfaayline- .space lever, .a rack 4driven fthereby,:a;p1n1on -rlrivenby-tlie rack,.a worm, a drivingclutch jbetween .the pinion and ',tlie-vfvvorin, ,awormlwheel driving the platen, a .train -VAof stop mechanism orsaid lever, vone 'end of said `train connected to said lever to be finely adjusted longitudinally thereof, and the other end ots-said train including aset. otjlinespace-'regulating stops, said worm-wheel in the form of .a crownw'he'el Vmounted 'coaxially '1 with 1the "platen, "said brown-wheel and worm', separable f' to lrelease the platen, and a spring holding the -crown=wheel and `worm `in mesh, said platen providedv ywith a rotating knob having means to release theL crown-wheel from the worm.

39. The combination of a. platen, a linespace lever, a rack driven thereby, a pinion driven by the rack, a worm, a driving clutch between the pinion and the worm, a wormwheel driving the platen, a train of' stop mechanism :tor said lever, one end ot said train Connected to said lever to' be tinely adjusted longitudinally thereof, and the other end of said train including a set of linespace-regulatmg stops, said worm-wheel m v'wheel iand A worm separable to `release the l i iiD-5 the form ot a crown-wheel mounted coaxially with the platen', said crown-wheel and worm separable to release the platen, a

spring holding the crown-whee1 and worm v in mesh, and means for separating the worin4 driven by the rack, a worm, a driving clutch I between the pinion and the worm, a wormwheel driving the platen, a train of step vmechanismV for said lever, one end of said train connected to said lever to be finely adjusted longitudinally thereof, and the other .Iendfof said train including a set of linespace-,regulating stops, and means effect-ive upon the conclusion of the return stroke of said lever for disconnectingjsaid pinion from said worm.

4l. The combination `of a platen, a linespace lever, a rack driven thereby, a pinionV driven by the rack, a worm, a driving clutch between the pinion and the worm, `a worinwheel driving theplaten, a train of stop mechanism for said lever, o-ne .end of said train connected to said lever to be iinely adjusted longitudinally thereof, and the other end of said train including aV set lof linespace-regulating stops, means eective upon the .conclusion of the return stroke ofV said at the line-spacing operation, 'a micrometer screwmeans by which it is mounted upon said swinging member, a'block adjustable along said swinging member, saidr screw threaded into said block, Va stop link pivoted tofsaid blockN to be adjusted thereby, and a seriesVV of stops adjustably co-operative with the other end of said link. Y

43. In a typewriting machine, the combination with a platen, ofV a line-spacing train therefor, including a driver, one member of said train being pivotally mounted to swing at the line-spacing operation, va micrometer screw, means by which it is mountedv upon said swinging member, a block 'adjustable along said swinging' member", said screw threaded into said block, a stop link pivoted to said block to be adjusted thereby, a swinging stop device pivoted to the other end of l saidlink, and a co-operating stop. g 44.*The combination with .a line-spacing lever and a platen, ofV af driving train between said lever and platen comprisingla rack, a pinion, a worm, a normally open clutchbetween thefpinion and the worin, and a worm-wheel meshing with said worm and connected to the platen.` r 45. rlhe combination with a line-spacing lever and a platen, of a driving train between said lever and platen comprising a rack, a pinion, a worm, a normallyV openv yclutch between the pinion and the worm,

and a worm-wheel meshing with said wormv and connected to the. platen, said wormwheel in the form of a crown-toothedwheel.

46. The combination with a line-spacing lever and a platen, of a driving train between said lever and platen comprising a rack, a pinion, a worm, a normally open clutch between the pinion and the worm, a worin-wheel meshing with said wormV and connected to the platen, and a brake forl the platen.

4:7. The combinationwith a line-spacing lever and a platen, of a driving train be- `'tween' said lever and platenk comprising a rack, a pinion, a worm, a normally openclutch between the pinion'and the worin, a worm-wheel meshing with said worm and connected to the platen, and a finger-wheel connected tol said worm to effect line adjustv lnients of the platen.

BURNHAM c. Vs "ric'iiviev., 

